地质科技情报2012，Vol.31Issue(5)：128-135,8.
应用水热运移数值模拟优化地下水源热泵系统抽灌井布局
Optimum Location of Pumping and Injection Wells of Groundwater Heat Exchange System Using Numerical Modeling of Water and Heat Transport
摘要
Abstract
Rational location of pumping and injection wells is a key for long-term efficient operation of a groundwater heat exchange system. Numerical modeling of groundwater and heat transport in Zhengdong New District of Zhengzhou was established to optimally locate the pumping and injection wells of groundw-ater heat exchange system, and to forecast the influence of long term operation of groundwater heat exchange system on flow and heat in aquifers. It is concluded that specific heat capacity and permeability are sensitive parameter and their changes will significantly impact on heat and head in aquifers respectively. Scheme 3 (three injection well vertical to natural flow direction and downwards the pumping well) is an optimized location of the wells. Rational distances between pumping and injection wells for the pumping/ injection rates of 900, 1 200, 1 500 and 2 000 m3/d are 50, 65, 70 and 75 m respectively. The influence of the groundwater heat exchange system that wells are located as scheme 3 is limited to the range of 200 m× 200 m after 20 year operation and the change of temperature in the pumping well is fewer than 1℃.关键词
地下水源热泵系统/水热运移/数值模拟/抽灌井布局Key words
groundwater heat exchange system/ water and heat transport/ numerical modeling/ layout of pump-injection wells分类
天文与地球科学引用本文复制引用
靳孟贵,汤庆佳,栗现文..应用水热运移数值模拟优化地下水源热泵系统抽灌井布局[J].地质科技情报,2012,31(5):128-135,8.基金项目
国家自然科学基金项目(41172218) （41172218）
国家重点基础研究发展计划(2010CB428802) （2010CB428802）
